./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:07:43,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:07:43,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:07:43,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:07:43,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:07:43,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:07:43,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:07:43,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:07:43,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:07:43,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:07:43,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:07:43,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:07:43,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:07:43,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:07:43,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:07:43,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:07:43,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:07:43,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:07:43,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:07:43,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:07:43,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:07:43,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:07:43,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:07:43,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:07:43,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:07:43,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:07:43,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:07:43,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:07:43,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:07:43,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:07:43,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:07:43,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:07:43,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:07:43,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:07:43,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:07:43,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:07:43,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:07:43,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:07:43,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:07:43,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:07:43,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:07:43,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:07:43,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:07:43,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:07:43,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:07:43,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:07:43,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:07:43,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:07:43,235 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:07:43,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:07:43,235 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:07:43,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:07:43,236 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:07:43,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:07:43,237 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:07:43,237 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:07:43,237 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:07:43,238 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:07:43,238 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:07:43,238 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:07:43,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:07:43,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:07:43,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:07:43,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:07:43,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:07:43,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:07:43,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:07:43,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:07:43,240 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:07:43,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:07:43,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:07:43,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:07:43,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:07:43,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:07:43,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:07:43,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:07:43,241 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:07:43,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:07:43,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:07:43,242 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:07:43,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:07:43,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:07:43,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:07:43,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 [2022-12-14 11:07:43,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:07:43,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:07:43,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:07:43,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:07:43,474 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:07:43,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2022-12-14 11:07:46,186 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:07:46,427 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:07:46,427 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2022-12-14 11:07:46,452 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/data/f030a39aa/b19fcfcdf32a4968aa841aa992a1472e/FLAGfa520bcf8 [2022-12-14 11:07:46,465 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/data/f030a39aa/b19fcfcdf32a4968aa841aa992a1472e [2022-12-14 11:07:46,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:07:46,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:07:46,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:07:46,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:07:46,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:07:46,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:07:46" (1/1) ... [2022-12-14 11:07:46,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15495b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:46, skipping insertion in model container [2022-12-14 11:07:46,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:07:46" (1/1) ... [2022-12-14 11:07:46,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:07:46,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:07:46,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c[1974,1987] [2022-12-14 11:07:46,678 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:07:46,679 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:07:46,680 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 11:07:46,683 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,684 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,684 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,684 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,692 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 11:07:46,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:07:46,840 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:07:46,850 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c[1974,1987] [2022-12-14 11:07:46,862 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:07:46,862 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 11:07:46,863 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 11:07:46,865 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,865 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,866 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,866 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 11:07:46,869 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 11:07:47,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:07:47,031 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:07:47,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47 WrapperNode [2022-12-14 11:07:47,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:07:47,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:07:47,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:07:47,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:07:47,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,167 INFO L138 Inliner]: procedures = 60, calls = 2058, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4373 [2022-12-14 11:07:47,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:07:47,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:07:47,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:07:47,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:07:47,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,302 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:07:47,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:07:47,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:07:47,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:07:47,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (1/1) ... [2022-12-14 11:07:47,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:07:47,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:07:47,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:07:47,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3cd8051-7056-42b2-93b5-208c68524821/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:07:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:07:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 11:07:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 11:07:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 11:07:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 11:07:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 11:07:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 11:07:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:07:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 11:07:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 11:07:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 11:07:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 11:07:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 11:07:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 11:07:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:07:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 11:07:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 11:07:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 11:07:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 11:07:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 11:07:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 11:07:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 11:07:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 11:07:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 11:07:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 11:07:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 11:07:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 11:07:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:07:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:07:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 11:07:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 11:07:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 11:07:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 11:07:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 11:07:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 11:07:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 11:07:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 11:07:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 11:07:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 11:07:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:07:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:07:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:07:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 11:07:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 11:07:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 11:07:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 11:07:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 11:07:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 11:07:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 11:07:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 11:07:47,710 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:07:47,712 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:07:54,018 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:07:54,209 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:07:54,209 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:07:54,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:07:54 BoogieIcfgContainer [2022-12-14 11:07:54,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:07:54,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:07:54,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:07:54,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:07:54,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:07:46" (1/3) ... [2022-12-14 11:07:54,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba76162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:07:54, skipping insertion in model container [2022-12-14 11:07:54,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:07:47" (2/3) ... [2022-12-14 11:07:54,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba76162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:07:54, skipping insertion in model container [2022-12-14 11:07:54,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:07:54" (3/3) ... [2022-12-14 11:07:54,221 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M1-1.c [2022-12-14 11:07:54,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:07:54,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:07:54,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:07:54,317 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27996f93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:07:54,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:07:54,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 1308 states, 804 states have (on average 1.2761194029850746) internal successors, (1026), 836 states have internal predecessors, (1026), 481 states have call successors, (481), 21 states have call predecessors, (481), 21 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-12-14 11:07:54,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2022-12-14 11:07:54,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:07:54,386 INFO L195 NwaCegarLoop]: trace histogram [137, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:07:54,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:07:54,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:07:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1758559173, now seen corresponding path program 1 times [2022-12-14 11:07:54,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:07:54,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243371504] [2022-12-14 11:07:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:07:54,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms